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anomalous diffraction
相关语句
  反常衍射
    Application on Circular Cyitinder Particle Size Distribution Based on Anomalous Diffraction Approximation
    反常衍射近似在测量圆柱形粒子粒径分布中的应用
短句来源
    In this paper, by numerical calculation based on Mie scattering and anomalous diffraction theories, we compared and analysed the Mie scattering and anomalous diffraction of spheres with refractue index near 1 in detail, and present a criterion of spheres with refractive index near 1 when anomalous diffraction theory can be used to replace Mie scattering theory.
    利用Mie散射与反常衍射理论的数值计算,对球形颗粒Mie散射和反常衍射作了大量详细的计算和分析比较,提出了相对折射率趋近于1的颗粒的反常衍射近似替代Mie散射的判据。
短句来源
    Parameter fitting between anomalous diffraction approach (ADA) theory and experimental data is applied to analyze scattering properties, which related with droplet size, refractive index of polymer in polymer dispersed liquid crystal (PDLC).
    用反常衍射(ADA)理论与实验数据优化拟合方法分析了聚合物分散液晶(PDLC)微滴在633nm激光照射下的散射特性与微滴尺寸、聚合物折射率的关系。
短句来源
    Using the anomalous diffraction approximation(ADA)instead of Mie extinction efficiency can simplify the inversion of particle size distribution.
    通过反常衍射近似(ADA)代替米消光系数,可以简化粒径分布的反演过程。
短句来源
    Simulation experiments illustrate that it is feasible to use the anomalous diffraction approximation to inverse the circular cylinder particle size distribution in the total light scattering technique,and the inversion results are steady and reliable.
    仿真结果表明,当粒子的相对折射率在一定范围内时,利用反常衍射近似反演圆柱形粒子的粒径分布是完全可行的,反演结果稳定、可靠。
短句来源
  异常衍射
    THE ANOMALOUS DIFFRACTION OF A LASER BEAM IN LiNbO_3:Fe CRYSTAL (Ⅰ)e→ e DIFFRACTION
    激光束在LiNbO_3:Fe晶体中的异常衍射现象(Ⅰ) e光入e光出的衍射
短句来源
    THE ANOMALOUS DIFFRACTION OF A LASER BEAM IN LiNbO_3:Fe CRYSTAL (Ⅱ) o→e DIFFRACTION
    激光束在LiNbO_3:Fe晶体中的异常衍射现象(Ⅱ) o光入e光出的衍射
短句来源
    Based on the anisotropic diffraction theory of phase gratings of Stepanov et al. , using the method developed by Gu and Li, we have made a detail calculation of the effect of anomalous diffraction of a laser beam passing through a cube of LiNbO3: Fe crystal.
    根据的相位光栅各向异性衍射理论,应用顾世杰、李荫远发展的方法,对于激光束在厚的LiNbO_3:Fe晶体(厚度≈1cm)中的异常衍射现象作了计算。
短句来源
    The transmission curve and absorption curve of LiNbO3 are measured. In addition, the anomalous diffraction patterns will not appear when the wave length of the strong laser beam is 694nm. For the above experiment we propose an analysis of the mechanism of photo-induced fractive index charge of LiNbO3.
    Zn,LiNbO_3:Mg4种晶体中异常衍射花样,测量了LiNbO_3晶体的透过曲线和吸收曲线,另外,当强激光束的波长为694nm时异常衍射花样将消失,根据上述实验提出了LiNbO_3光折变的机理。
短句来源
  “anomalous diffraction”译为未确定词的双语例句
    THE INDEXING OF "ANOMALOUS DIFFRACTION SPOTS"IN THE LAUE DIAGRAMS OF ZnS CRYSTAL 3C(?)2H STRUCTURE TRANSFORMATIONS
    ZnS晶体3C2H结构转变的LAUE衍射图中“奇异点”的标定
短句来源
    COMPARISON AND ANALYSIS OF Mie SCATTERING AND ANOMALOUS DIFFRACTION OF SPHERES WITH REFRACTIVE INDEX NEAR 1
    相对折射率趋近于1的颗粒Mie散射与反常衍射的分析比较
短句来源
    The anomalous diffraction patterns of 532 nm strong laser beam in LiNbO3: Li; LiNbO3: Li, Zn; LiNbO3: Mg;
    首次观察到了532nm强激光束在LiNbO_3,LiNbO_3:Li,LiNbO_3:Li.
短句来源
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  anomalous diffraction
Anomalous diffraction effects observed on the x-ray diffraction patterns of decomposing supersaturated solid solutions
      
The mathematical model is considered in the anomalous diffraction approximation.
      
Anomalous diffraction of diphenylacetylene oligomers synthesized under elevated pressure
      
Comparison with results obtained using the dipole superposition method demonstrates that the accuracy of the anomalous diffraction approximation is within 15%.
      
Fluffy snow flakes are modeled by a polydispersion of hexagonal plates for which analytical expressions for absorption and scattering coefficients are derived using the anomalous diffraction approximation.
      
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In the Laue diffraction photographs of ZnS single crystal containing one-dimensional disorder,there are some anomalous diffraction spots which are different from the normal diffraction spots in shape, i. e. so called"Anomalous Diffraction Spots"("ADS") (see Fig. 4-10) .In the Laue diffraction analysis of ZnS crystal 3C 2H structure transformations, in order to define the stacking faults,new phases created from the matrix,and their created directions, the "ADS" must be indexed.In the present...

In the Laue diffraction photographs of ZnS single crystal containing one-dimensional disorder,there are some anomalous diffraction spots which are different from the normal diffraction spots in shape, i. e. so called"Anomalous Diffraction Spots"("ADS") (see Fig. 4-10) .In the Laue diffraction analysis of ZnS crystal 3C 2H structure transformations, in order to define the stacking faults,new phases created from the matrix,and their created directions, the "ADS" must be indexed.In the present article, at first the formulas for calculating" ADS"in curve zones of the Laue diffraction diagram have been derived.The formulas are shown as follow:Using the formulas.some"ADS"in 3C-and 2H-ZnS Laue photographs have been calculated.The calculated values are good agreement with the experimental data, so that the"ADS"could be regarded as one of the X-ray diffraction effects due to the stacking faults.The .results also show the hypothesis that there are reciprocal rods in the stacking faults' crystals is reasonable. Both the"ADS" and the streacking in the Laue photographs are the diffraction effects due to the stacking faults, but the former is a outcome resulted from characteristic reflection spheres intersecting the reciprocal rods, and the latter is the outcome resulted from the continuous reflection spheres intersecting the reciprocal rods.Therefore,the"ADS"wiIl overlap certainly upon the diffuse streacking.The shape of the"ADS"depends on the relative position of the reciprocal rods and the characteristic reflection sphere .When the sphere intersects the rods,the most"ADS"are elliptical (see Fig.6-10), and a few spots round (see Fig.4-5); when the sphere intersects the rods tangentially, the "ADS" are just like a "crescent moon"or a"dumbbell".The black extent of the "ADS"depends on the intensity distribution at the point where the characteristic reflection sphere intersects the reciprocal rods,and the intensity distribution of the reciprocal rods is a function of one-dimensional disorder in the crystal.Therefore,the intensity variation of the"ADS" indicates directly the extent of one-dimensional disorder in the crystal.When the density of the stacking faults is lower, although the diffuse streacking tends to disappear, people can judge the existence of the stacking faults by determining the"ADS" (see Fig.9), and also can judge the directions and distribution of one-dimensional disorder in the crystal by analysing the "ADS"(see Fig.10 and reference[2]).The formulas for calculating the"ADS"are fit to the case in which the incident X-ray is parallel or perpendicular to the reciprocal rods in the crystal.When the condition is not satisfied,the crystal may be gradually returned (several degrees per time) to the proper orientation, at the same time the Laue photographs would be taken, and finally the indexing of "ADS" would be performed.

在ZnS晶体3C2H结构转变的X—射线Laue衍射分析中,为了解释一维无序造成的异常衍射现象,本文推导了Laue衍射图曲线晶带的“奇异点”计算公式。并应用此公式,计算了ZnSLaue衍射照片上数条晶带上的“奇异点”,计算值与实验值完全吻合。另外,本文还对“奇异点”的形成、特点、标定的意义以及计算公式适用范围进行了讨论。

Based on the anisotropic diffraction theory of phase gratings of Stepanov et al., using the method developed by Gu and Li, we have made a detail calculation of the effect of anomalous diffraction of a laser beam passing through a cube of LiNbO3: Fe crystal. Fourier transform of the chaotic destribution of electric charge excessively accumalated in small regions shows the existence of infinite number of phase gratings. The diffraction pattern is determined by the diffraction efficiency of these...

Based on the anisotropic diffraction theory of phase gratings of Stepanov et al., using the method developed by Gu and Li, we have made a detail calculation of the effect of anomalous diffraction of a laser beam passing through a cube of LiNbO3: Fe crystal. Fourier transform of the chaotic destribution of electric charge excessively accumalated in small regions shows the existence of infinite number of phase gratings. The diffraction pattern is determined by the diffraction efficiency of these gratings. The results of calculation show that the two lobes on both sides of the central spot the shapes of which are determined by the lease effect can be interpreted. Theory and experimental data fit fairly well.

根据的相位光栅各向异性衍射理论,应用顾世杰、李荫远发展的方法,对于激光束在厚的LiNbO_3:Fe晶体(厚度≈1cm)中的异常衍射现象作了计算。如果晶体中被照射后有无规的电荷富集分布,则Fourier分解后可得到无穷个相位光栅,衍射图形决定于光栅的衍射效率。计算结果表明,对e光入e光出的衍射图形,可以解释中央光斑(由透镜效应所决定)两边的光瓣。结果与实验基本符合。

Some experimental facts concerning the anomalous diffraction pattern which arises when a laser beam o ray passes through a LiNbO3: Fe crystal with diffracted e ray and related phenomena in the Raman spectra are described. And the same method as was used in ref. [1| is applied to calculate the diffraction pattern quantitatively. Result of the calculations fits the experiment fairly well, this manifests the applicability of the theory of anisotropic diffraction of volume phase gratings to the...

Some experimental facts concerning the anomalous diffraction pattern which arises when a laser beam o ray passes through a LiNbO3: Fe crystal with diffracted e ray and related phenomena in the Raman spectra are described. And the same method as was used in ref. [1| is applied to calculate the diffraction pattern quantitatively. Result of the calculations fits the experiment fairly well, this manifests the applicability of the theory of anisotropic diffraction of volume phase gratings to the anomalous diffraction with a 90° rotation of the polarization of the beams. Many other experimental facts are interpreted as well.

本文首先叙述了一些σ光入e光出衍射的实验现象,包括衍射图样随温度的变化以及相应的Kaman光谱的变化等。然后用文献[1]中的方法,对室温衍射图样进行了计算。证明这种偏振面旋转90°的异常衍射现象是空间相位光栅的各向异性衍射产生的。对一些其它实验现象也作了解释。

 
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